Crushing are moves that are "invincible". They are moves that can ignore highs, mids or lows to hit challenging opponents. This is often confused with evasion moves, and while the two seem similar. Crushing moves are moves that ignores while evasion creates whiffs due to a backsway, backstep, etc. Prime example would be hopkicks for crushing and Paul's backsway for evasion. Hopkicks are known to crush lows because they are "invicible" to lows due to the airborne state it gives to the player, while Paul's backsway causes him to evade highs which creates whiffs leading to a whiff punish.